Heat gun



FIG. 1 is a perspective view of a heat gun showing my new design.

FIG. 2 is a left side view of the heat gun according to FIG. 1.

FIG. 3 is a right side view of the heat gun according to FIG. 1.

FIG. 4 is a front view of the heat gun according to FIG. 1.

FIG. 5 is a rear view of the heat gun according to FIG. 1.

FIG. 6 is a top view of the heat gun according to FIG. 1; and,

FIG. 7 is a bottom view of the heat gun according to FIG. 1.

The broken lines in FIG. 4 illustrate features that form no part of the claimed design. 

The ornamental design for a heat gun, as shown and described. 